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Related papers: XMM-Newton observations of Nova Sgr 1998

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A recent analysis of Chandra X-ray data of the metal-polluted white dwarf (WD) G29-38 has revealed X-ray emission that can be attributed to the accretion of debris from a planetary body. In the light of this detection we revisit here…

Solar and Stellar Astrophysics · Physics 2023-03-01 S. Estrada-Dorado , M. A. Guerrero , J. A. Toalá , Y. -H. Chu , V. Lora , C. Rodríguez-López

We have observed the fast nova V5583 Sagittarii with five B, V, y, R_C, and I_C bands, and found that these multi-band light curves are almost identical with those of V382 Vel 1999 until at least 100 days after outburst. A supersoft X-ray…

Solar and Stellar Astrophysics · Physics 2009-12-31 Izumi Hachisu , Mariko Kato , Seiichiro Kiyota , Hiroyuki Maehara

We present the results of soft X-ray studies of the classical nova V2491 Cygni using the Suzaku observatory. On day 29 after outburst, a soft X-ray component with a peak at ~0.5 keV has appeared, which is tantalising evidence for the…

High Energy Astrophysical Phenomena · Physics 2015-05-14 D. Takei , J. -U. Ness

The XMM-Newton X-ray observatory took part in the multi-wavelength observing campaign of the massive, evolved star Eta Carinae in 2003 during its recent X-ray minimum. This paper reports on the results of these observations, mainly from the…

Astrophysics · Physics 2007-05-23 K. Hamaguchi , M. F. Corcoran , T. Gull , N. E. White , A. Damineli , K. Davidson

We report on the first deeper X-ray broad-band observation of the hot spot galaxy NGC 2903 obtained with XMM-Newton. X-ray imaging and spectra of the spiral barred galaxy were obtained from XMM-Newton archival data to study its X-ray…

High Energy Astrophysical Phenomena · Physics 2015-05-20 D. Perez-Ramirez , M. D. Caballero-Garcia , J. Ebrero , S. Leon

We revisit the XMM-Newton observations of the dwarf nova OY Car taken in July 2000 which occured shortly after an outburst. Ramsay et al (2001a) found a prominent energy dependent modulation at a period of 2240 sec: this modulation was only…

Astrophysics · Physics 2009-11-10 Pasi Hakala , Gavin Ramsay

We report the results of observations of V4633 Sgr (Nova Sagittarii 1998) during 1998-2000. Two photometric periodicities were present in the light curve during the three years of observations: a stable one at P=3.014 h, which is probably…

Astrophysics · Physics 2009-11-07 Y. Lipkin , E. M. Leibowitz , A. Retter , O. Shemmer

XMM-Newton observations of the accreting, pulsating white dwarf in the quiescent dwarf nova GW Librae were conducted to determine if the non-radial pulsations present in previous UV and optical data affect the X-ray emission. The non-radial…

Astrophysics · Physics 2008-11-26 Eric J. Hilton , Paula Szkody , Anjum Mukadam , Koji Mukai , Coel Hellier , Liza van Zyl , Lee Homer

We have extended our earlier study (Heard & Warwick 2013, Paper I) of the X-ray emission emanating from the central 100 pc x 100 pc region of our Galaxy to an investigation of several features prominent in the soft X-ray (2-4.5 keV) band.…

High Energy Astrophysical Phenomena · Physics 2015-06-16 V. Heard , R. S. Warwick

We present results from two XMM-Newton observations of the bright classical Seyfert 2 galaxy NGC 7582 taken four years apart (2001 May and 2005 April). We present the analysis of the high-resolution (0.3-1 keV) RGS and low-resolution…

Astrophysics · Physics 2009-11-13 E. Piconcelli , S. Bianchi , M. Guainazzi , F. Fiore , M. Chiaberge

We present results from the XMM observations of the dwarf nova YZ Cnc in a quiescent state. We have performed a detailed time series analysis of the resulting light curves. Unusually, we do not detect any orbital modulation in the UV, with…

Astrophysics · Physics 2009-11-10 Pasi Hakala , Gavin Ramsay , Peter Wheatley , Emilios Harlaftis , C. Papadimitriou

We report the XMM-Newton/EPIC detection in 2008 March of a luminous (L_X ~ 10^32-33 erg/s), variable X-ray source in the vicinity (within ~6") of the enigmatic star V838 Mon, which underwent a spectacular outburst in early 2002. Spectral…

Solar and Stellar Astrophysics · Physics 2014-11-20 Fabio Antonini , Rodolfo Jr. Montez , Joel H. Kastner , Howard E. Bond , Noam Soker , Romuald Tylenda , Sumner Starrfield , Ehud Behar

We present the X-ray grating spectra of the recurrent nova RS Ophiuchi during its 2006 outburst, obtained with the XMM-Newton and Chandra observatories. Two weeks after optical maximum, the X-ray spectrum was hard and dominated by emission…

Results from observations of the young oxygen-rich supernova remnant SNR 0102-72.3 in the Small Magellanic Cloud during the calibration phase of the XMM-Newton Observatory are presented. Both EPIC-PN and MOS observations show a ringlike…

Astrophysics · Physics 2007-05-23 M. Sasaki , T. F. X. Stadlbauer , F. Haberl , M. D. Filipovi'c , P. J. Bennie

We present spectral analysis from XMM-Newton observations of the Vela pulsar. We analyzed thermal emission from the pulsar dominating below ~ 1 keV since extracted spectra are heavily contaminated by nebular emission at higher energy.…

Astrophysics · Physics 2009-11-10 Kaya Mori , Charles J. Hailey , Frits Paerels , Silvia Zane

SRGt 062340.2-265751, a cataclysmic variable identified by SRG/eROSITA thanks to its significant X-ray variability, remains poorly characterised despite the multi-wavelength follow-up. We present spectral and timing analyses from the first…

High Energy Astrophysical Phenomena · Physics 2025-12-01 V. A. Cúneo , A. D. Schwope , J. Kurpas , A. Avakyan , J. Brink , D. A. H. Buckley , C. Maitra , M. Veresvarska

We report the detection of super-hard (>10 keV) X-ray emission extending up to 70 keV from the classical nova V2491 Cygni using the Suzaku observatory. We conducted two ~20 ks target-of-opportunity observations 9 and 29 days after the…

High Energy Astrophysical Phenomena · Physics 2010-01-15 D. Takei , M. Tsujimoto , S. Kitamoto , J. -U. Ness , J. J. Drake , H. Takahashi , K. Mukai

The neutron star low-mass X-ray binary EXO 0748-676 started a transition from outburst to quiescence in August 2008, after more than 24 years of continuous accretion. The return of the source to quiescence has been monitored extensively by…

High Energy Astrophysical Phenomena · Physics 2015-05-27 M. Diaz Trigo , L. Boirin , E. Costantini , M. Mendez , A. Parmar

For the He/N nova M31N 2007-12b, we analyzed XMM-Newton EPIC and Chandra HRC-I observations of our monitoring program performed at intervals of ten days and added results of a XMM-Newton target of opportunity observation and Swift XRT…

High Energy Astrophysical Phenomena · Physics 2015-05-28 W. Pietsch , M. Henze , F. Haberl , M. Hernanz , G. Sala , D. H. Hartmann , M. Della Valle

Nova Velorum 1999 (V382 Vel) was observed by BeppoSAX 6 months after optical maximum and was detected as a bright X-ray supersoft source, with a count rate 3.454+-0.002 cts/s in the LECS. It was the softest and most luminous supersoft…

Astrophysics · Physics 2009-11-07 M. Orio , A. N. Parmar , J. Greiner , H. Ogelman , S. Starrfield , E. Trussoni